TEM.

Derivation of word 137

The channel of communication between leaf and
root 153

In a perfect plant it consists of three parts:

I. THE STEM (STEMMA) proper.--A growing or advancing
shoot which sustains all the other
organs of the plant 136

It may grow by adding thickness to its sides without
advancing; but its essential characteristic is
the vital power of Advance 136
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It may be round, square, or polygonal, but is always
roundly minded 136

Its structural power is Spiral 137

It is essentially branched; having subordinate leaf-stalks
and flower-stalks, if not larger branches 139

It developes the buds, leaves, and flowers of the
plant.

This power is not yet properly defined, or explained;
and referred to only incidentally throughout
the eighth chapter 134-138

II. THE LEAF-STALK (CYMBA) sustains, and expands
itself into, the Leaf 133, 134

It is essentially furrowed above, and convex below 134

It is to be called in Latin, the Cymba; in English,
the Leaf-Stalk 135

III. THE FLOWER-STALK (PETIOLUS):

It is essentially round 130

It is usually separated distinctly at its termination
from the flower 130, 131

It is to be called in Latin, Petiolus; in English,
Flower-stalk 130

These three are the essential parts of a stem. But
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besides these, it has, when largely developed, a
permanent form: namely,

IV. THE TRUNK.--A non-advancing mass of collected
stem, arrested at a given height from the
ground 139

/#
The stems of annual plants are either leafy, as of a
thistle, or bare, sustaining the flower or flower-cluster at
a certain height above the ground. Receiving therefore
these following names:---
#/

V. THE VIRGA.--The leafy stem of an annual plant,
not a grass, yet growing upright 147

VI. THE VIRGULA.--The leafless